The nose cone seam wasn't too bad.
Sanding with 220 brought down the high spots, a bead of medium CA filled the remaining recess.
The fin grain was filled before they were glued on.
It's easy to get filler on the root edge. Wipe it off with a Q-tip.
The centering rings were pretty loose in the BT-80 body tube.
The outside edge of the rings got a line of glue to increase the diameter.
To be sure everything lines up, the mount was dry fitted with the fin tabs inserted.
The engine hook was centered between two fins, then a glue fillet was applied to the lower ring.
The upper fillet was applied drop by drop on the end of a rounded dowel.
On the other end of the dowel, a Q-tip was taped on.
The Q-tip picked up any excess glue left after the upper fillet was smoothed out.
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